General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

Ionisation gauge

Science; General science

An instrument for measuring vacuum by ionising the gas present and measuring the ion current. There are two types of ionisation gages.

Electroscope

Science; General science

An instrument for detecting the presence and sign of an electric charge. It is the simplest type of ionisation chamber.

An instrument used for making measurements of light, or electromagnetic radiation, in the visible range. In general, photometers may be divided into two classifications: laboratory photometers, which ...

Optical microscope

Science; General science

An instrument used to obtain an enlarged image of a small object. In general, a compound microscope consists of a light source, a condenser, an objective, and an ocular or eyepiece, which can be ...

Mass spectroscope

Science; General science

An instrument used for determining the masses of atoms or molecules found in a sample of gas, liquid, or solid. It is analogous to the optical spectroscope, in which a beam of light containing ...

Telescope

Science; General science

An instrument used to collect, measure, or analyse electromagnetic radiation from distant objects. A telescope overcomes the limitations of the eye by increasing the ability to see faint objects and ...

Radio telescope

Science; General science

An instrument used in astronomical research to study naturally occurring radio emission from stars, galaxies, quasars, pulsars, interstellar clouds, and other astronomical bodies between wavelengths ...